[CrOS PhoneHub] Change text color when enable hotspot is connected.

Add a function to change sub label's text color in QuickActionItem,
which is used in enable hotspot to change the color to green when
connected.

Bug: 1106937,1126208
Change-Id: Ia892551bd7d60ea1131b6d5c84f60cd6951b8e83
Fixed: 1144843
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2512547Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Tim Song <tengs@chromium.org>
Commit-Queue: Andre Le <leandre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#823340}

ash/system/phonehub/enable_hotspot_quick_action_controller.cc

@@ -6,6 +6,7 @@
 
 #include "ash/resources/vector_icons/vector_icons.h"
 #include "ash/strings/grit/ash_strings.h"
+#include "ash/style/ash_color_provider.h"
 #include "ash/system/phonehub/phone_hub_metrics.h"
 #include "ash/system/phonehub/quick_action_item.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -74,26 +75,34 @@ void EnableHotspotQuickActionController::SetState(ActionState state) {
   bool icon_enabled;
   int state_text_id;
   int sub_label_text;
+  SkColor sub_label_color;
   switch (state) {
     case ActionState::kOff:
       icon_enabled = false;
       state_text_id = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_DISABLED_STATE_TOOLTIP;
       sub_label_text = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_OFF_STATE;
+      sub_label_color = AshColorProvider::Get()->GetContentLayerColor(
+          AshColorProvider::ContentLayerType::kTextColorSecondary);
       break;
     case ActionState::kConnecting:
       icon_enabled = true;
       state_text_id = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_CONNECTING_STATE_TOOLTIP;
       sub_label_text = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_CONNECTING_STATE;
+      sub_label_color = AshColorProvider::Get()->GetContentLayerColor(
+          AshColorProvider::ContentLayerType::kTextColorSecondary);
       break;
     case ActionState::kConnected:
       icon_enabled = true;
       state_text_id = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_CONNECTED_STATE_TOOLTIP;
       sub_label_text = IDS_ASH_PHONE_HUB_QUICK_ACTIONS_CONNECTED_STATE;
+      sub_label_color = AshColorProvider::Get()->GetContentLayerColor(
+          AshColorProvider::ContentLayerType::kTextColorPositive);
       break;
   }
 
   item_->SetToggled(icon_enabled);
   item_->SetSubLabel(l10n_util::GetStringUTF16(sub_label_text));
+  item_->SetSubLabelColor(sub_label_color);
   base::string16 tooltip_state =
       l10n_util::GetStringFUTF16(state_text_id, item_->GetItemLabel());
   item_->SetIconTooltip(

ash/system/phonehub/quick_action_item.cc

@@ -63,6 +63,9 @@ QuickActionItem::QuickActionItem(Delegate* delegate,
   ConfigureLabel(sub_label_, kUnifiedFeaturePodSubLabelLineHeight,
                  kUnifiedFeaturePodSubLabelFontSize);
 
+  sub_label_color_ = AshColorProvider::Get()->GetContentLayerColor(
+      AshColorProvider::ContentLayerType::kTextColorSecondary);
+
   SetEnabled(true /* enabled */);
 
   SetPaintToLayer();
@@ -80,6 +83,13 @@ void QuickActionItem::SetSubLabel(const base::string16& sub_label) {
   sub_label_->SetText(sub_label);
 }
 
+void QuickActionItem::SetSubLabelColor(SkColor color) {
+  if (sub_label_color_ == color)
+    return;
+  sub_label_color_ = color;
+  sub_label_->SetEnabledColor(sub_label_color_);
+}
+
 void QuickActionItem::SetIcon(bool is_on) {
   icon_button_->SetVectorIcon(is_on ? icon_on_ : icon_off_);
 }
@@ -120,8 +130,7 @@ void QuickActionItem::SetEnabled(bool enabled) {
   } else {
     label_->SetEnabledColor(AshColorProvider::Get()->GetContentLayerColor(
         AshColorProvider::ContentLayerType::kTextColorPrimary));
-    sub_label_->SetEnabledColor(AshColorProvider::Get()->GetContentLayerColor(
-        AshColorProvider::ContentLayerType::kTextColorSecondary));
+    sub_label_->SetEnabledColor(sub_label_color_);
   }
 }
 

ash/system/phonehub/quick_action_item.h

@@ -44,6 +44,9 @@ class ASH_EXPORT QuickActionItem : public views::View,
   // Set the text of sub-label shown below the label.
   void SetSubLabel(const base::string16& sub_label);
 
+  // Set the color of sub-label shown below the label.
+  void SetSubLabelColor(SkColor color);
+
   // Set the icon button to be either |icon_on_| or |icon_off_|.
   void SetIcon(bool is_on);
 
@@ -81,6 +84,9 @@ class ASH_EXPORT QuickActionItem : public views::View,
   const gfx::VectorIcon& icon_off_;
   views::Label* label_ = nullptr;
   views::Label* sub_label_ = nullptr;
+
+  // Enabled color of the sub label.
+  SkColor sub_label_color_;
 };
 
 }  // namespace ash